Maybe just explain to your members (as in a FAQ) that the Pending and Disapproved links simply show the status of an uploaded file.
Videos take time to process so they would show in pending until they went online, (processed).
If you Disapprove a file at a later date you'll get questions about where it went, having the Disapproved link will let a member know they've uploaded something against your site rules.
Just my 2 bits but my members seem to use them. An extensive FAQ and encouragement to use it works for me.